1.
MLM Road Map: A Step-by-Step System of Building a Network Marketing Dowline - Ray H. Duncan ...
by Duncan, Ray H., Duncan, Joy R.
ISBN: 9781929746002
List Price: $19.95
2.
The MLM Binary Plan: A Comprehensive Look at Network Marketing's Most Controversial Plan
by Duncan, Ray H., Duncan, Joy R.
ISBN: 9781929746019
List Price: $9.95